$1.$ Assume we are using the simple model for floating$-$point representation discussed in the class $($the representation uses a $14-$bit format, $5$ bits for the exponent with an Excess$-$M$,$ a significand of $8$ bits, and a single sign bit for the number$)$:

Convert $-143\mathrm{.}635$ to the floating$-$point binary representation. $($Remember we learned "implied one" format in the lecture$)$